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🧮 Medical Calculators

Clinical tools for patients and providers from our board-certified endocrinologists.

Diabetes & Metabolic

Corrected Calcium

Adjusts serum calcium for albumin level. Essential in hypoalbuminemia to find true calcium status.

Fructosamine → A1C

Convert fructosamine to estimated A1C — useful when A1C is unreliable (hemoglobin variants, pregnancy, anemia).

Insulin:Carb Ratio

Calculate how many grams of carbohydrate 1 unit of rapid-acting insulin covers (500 Rule).

Insulin Sensitivity + Sliding Scale

Calculate your correction factor and generate a printable personalized sliding scale for correcting high blood sugars.

Insulin resistance index from fasting glucose + insulin. Key marker for pre-diabetes, PCOS, and metabolic syndrome.

eGFR (CKD-EPI 2021)

Race-free kidney function estimator. Stages CKD and guides medication dosing in diabetes and endocrine disease.

BMI & Ideal Body Weight

Body mass index and Devine IBW in imperial or metric — used for obesity staging, medication dosing, and weight goals.

PREVENT CVD Risk (AHA 2023)

Race-free cardiovascular risk calculator. 10-year and 30-year risk for total CVD, ASCVD, and heart failure. Includes eGFR and BMI.

Endocrine

Steroid Dose Conversion

Convert between hydrocortisone, prednisone, methylprednisolone, dexamethasone, and betamethasone using glucocorticoid equivalencies.

Levothyroxine Dose Estimator

Estimate starting LT4 dose by weight and indication — primary hypothyroidism, post-thyroidectomy, TSH suppression, elderly patients.

Thyroid

Thyroid Cancer Post-Op Risk

ATA 2025 four-tier risk stratification from surgical pathology → RAI indication, TSH suppression target, and surveillance plan.

Thyroid Nodule Risk Tool

ATA 2015 sonographic risk stratification + Bethesda category reference + ACR TI-RADS guide + AFIRMA/Thyroseq context.

⚕️ These calculators are for educational purposes and provide starting estimates only. All clinical decisions — including insulin dosing — must be made in partnership with your healthcare provider. Call us at 832-968-7003 if you have questions.